1 /* 2 * This file is subject to the terms and conditions of the GNU General Public 3 * License. See the file "COPYING" in the main directory of this archive 4 * for more details. 5 * 6 * xwidget.h - generic crosstalk widget header file, derived from IRIX 7 * <sys/xtalk/xtalkwidget.h>, revision 1.32. 8 * 9 * Copyright (C) 1996, 1999 Silcon Graphics, Inc. 10 * Copyright (C) 1999 Ralf Baechle (ralf@gnu.org) 11 */ 12 #ifndef _ASM_XTALK_XWIDGET_H 13 #define _ASM_XTALK_XWIDGET_H 14 15 #include <linux/types.h> 16 #include <asm/xtalk/xtalk.h> 17 18 #define WIDGET_ID 0x04 19 #define WIDGET_STATUS 0x0c 20 #define WIDGET_ERR_UPPER_ADDR 0x14 21 #define WIDGET_ERR_LOWER_ADDR 0x1c 22 #define WIDGET_CONTROL 0x24 23 #define WIDGET_REQ_TIMEOUT 0x2c 24 #define WIDGET_INTDEST_UPPER_ADDR 0x34 25 #define WIDGET_INTDEST_LOWER_ADDR 0x3c 26 #define WIDGET_ERR_CMD_WORD 0x44 27 #define WIDGET_LLP_CFG 0x4c 28 #define WIDGET_TFLUSH 0x54 29 30 /* WIDGET_ID */ 31 #define WIDGET_REV_NUM 0xf0000000 32 #define WIDGET_PART_NUM 0x0ffff000 33 #define WIDGET_MFG_NUM 0x00000ffe 34 #define WIDGET_REV_NUM_SHFT 28 35 #define WIDGET_PART_NUM_SHFT 12 36 #define WIDGET_MFG_NUM_SHFT 1 37 38 #define XWIDGET_PART_NUM(widgetid) (((widgetid) & WIDGET_PART_NUM) >> WIDGET_PART_NUM_SHFT) 39 #define XWIDGET_REV_NUM(widgetid) (((widgetid) & WIDGET_REV_NUM) >> WIDGET_REV_NUM_SHFT) 40 #define XWIDGET_MFG_NUM(widgetid) (((widgetid) & WIDGET_MFG_NUM) >> WIDGET_MFG_NUM_SHFT) 41 42 /* WIDGET_STATUS */ 43 #define WIDGET_LLP_REC_CNT 0xff000000 44 #define WIDGET_LLP_TX_CNT 0x00ff0000 45 #define WIDGET_PENDING 0x0000001f 46 47 /* WIDGET_ERR_UPPER_ADDR */ 48 #define WIDGET_ERR_UPPER_ADDR_ONLY 0x0000ffff 49 50 /* WIDGET_CONTROL */ 51 #define WIDGET_F_BAD_PKT 0x00010000 52 #define WIDGET_LLP_XBAR_CRD 0x0000f000 53 #define WIDGET_LLP_XBAR_CRD_SHFT 12 54 #define WIDGET_CLR_RLLP_CNT 0x00000800 55 #define WIDGET_CLR_TLLP_CNT 0x00000400 56 #define WIDGET_SYS_END 0x00000200 57 #define WIDGET_MAX_TRANS 0x000001f0 58 #define WIDGET_WIDGET_ID 0x0000000f 59 60 /* WIDGET_INTDEST_UPPER_ADDR */ 61 #define WIDGET_INT_VECTOR 0xff000000 62 #define WIDGET_INT_VECTOR_SHFT 24 63 #define WIDGET_TARGET_ID 0x000f0000 64 #define WIDGET_TARGET_ID_SHFT 16 65 #define WIDGET_UPP_ADDR 0x0000ffff 66 67 /* WIDGET_ERR_CMD_WORD */ 68 #define WIDGET_DIDN 0xf0000000 69 #define WIDGET_SIDN 0x0f000000 70 #define WIDGET_PACTYP 0x00f00000 71 #define WIDGET_TNUM 0x000f8000 72 #define WIDGET_COHERENT 0x00004000 73 #define WIDGET_DS 0x00003000 74 #define WIDGET_GBR 0x00000800 75 #define WIDGET_VBPM 0x00000400 76 #define WIDGET_ERROR 0x00000200 77 #define WIDGET_BARRIER 0x00000100 78 79 /* WIDGET_LLP_CFG */ 80 #define WIDGET_LLP_MAXRETRY 0x03ff0000 81 #define WIDGET_LLP_MAXRETRY_SHFT 16 82 #define WIDGET_LLP_NULLTIMEOUT 0x0000fc00 83 #define WIDGET_LLP_NULLTIMEOUT_SHFT 10 84 #define WIDGET_LLP_MAXBURST 0x000003ff 85 #define WIDGET_LLP_MAXBURST_SHFT 0 86 87 /* Xtalk Widget Device Mfgr Nums */ 88 #define WIDGET_XBOW_MFGR_NUM 0x0 /* IP30 XBow Chip */ 89 #define WIDGET_XXBOW_MFGR_NUM 0x0 /* IP35 Xbow + XBridge Chip */ 90 #define WIDGET_ODYS_MFGR_NUM 0x023 /* Odyssey / VPro GFX */ 91 #define WIDGET_TPU_MFGR_NUM 0x024 /* Tensor Processor Unit */ 92 #define WIDGET_XBRDG_MFGR_NUM 0x024 /* IP35 XBridge Chip */ 93 #define WIDGET_HEART_MFGR_NUM 0x036 /* IP30 HEART Chip */ 94 #define WIDGET_BRIDG_MFGR_NUM 0x036 /* PCI Bridge */ 95 #define WIDGET_HUB_MFGR_NUM 0x036 /* IP27 Hub Chip */ 96 #define WIDGET_BDRCK_MFGR_NUM 0x036 /* IP35 Bedrock Chip */ 97 #define WIDGET_IMPCT_MFGR_NUM 0x2aa /* HQ4 / Impact GFX */ 98 #define WIDGET_KONA_MFGR_NUM 0x2aa /* InfiniteReality3 / Kona GFX */ 99 #define WIDGET_NULL_MFGR_NUM -1 /* NULL */ 100 101 /* Xtalk Widget Device Part Nums */ 102 #define WIDGET_XBOW_PART_NUM 0x0000 103 #define WIDGET_HEART_PART_NUM 0xc001 104 #define WIDGET_BRIDG_PART_NUM 0xc002 105 #define WIDGET_IMPCT_PART_NUM 0xc003 106 #define WIDGET_ODYS_PART_NUM 0xc013 107 #define WIDGET_HUB_PART_NUM 0xc101 108 #define WIDGET_KONA_PART_NUM 0xc102 109 #define WIDGET_BDRCK_PART_NUM 0xc110 110 #define WIDGET_TPU_PART_NUM 0xc202 111 #define WIDGET_XXBOW_PART_NUM 0xd000 112 #define WIDGET_XBRDG_PART_NUM 0xd002 113 #define WIDGET_NULL_PART_NUM -1 114 115 /* For Xtalk Widget identification */ 116 struct widget_ident { 117 u32 mfgr; 118 u32 part; 119 char *name; 120 char *revs[16]; 121 }; 122 123 /* Known Xtalk Widgets */ 124 static const struct widget_ident __initconst widget_idents[] = { 125 { 126 WIDGET_XBOW_MFGR_NUM, 127 WIDGET_XBOW_PART_NUM, 128 "xbow", 129 {NULL, "1.0", "1.1", "1.2", "1.3", "2.0", NULL}, 130 }, 131 { 132 WIDGET_HEART_MFGR_NUM, 133 WIDGET_HEART_PART_NUM, 134 "heart", 135 {NULL, "A", "B", "C", "D", "E", "F", NULL}, 136 }, 137 { 138 WIDGET_BRIDG_MFGR_NUM, 139 WIDGET_BRIDG_PART_NUM, 140 "bridge", 141 {NULL, "A", "B", "C", "D", NULL}, 142 }, 143 { 144 WIDGET_IMPCT_MFGR_NUM, 145 WIDGET_IMPCT_PART_NUM, 146 "impact", 147 {NULL, "A", "B", NULL}, 148 }, 149 { 150 WIDGET_ODYS_MFGR_NUM, 151 WIDGET_ODYS_PART_NUM, 152 "odyssey", 153 {NULL, "A", "B", NULL}, 154 }, 155 { 156 WIDGET_HUB_MFGR_NUM, 157 WIDGET_HUB_PART_NUM, 158 "hub", 159 {NULL, "1.0", "2.0", "2.1", "2.2", "2.3", "2.4", NULL}, 160 }, 161 { 162 WIDGET_KONA_MFGR_NUM, 163 WIDGET_KONA_PART_NUM, 164 "kona", 165 {NULL}, 166 }, 167 { 168 WIDGET_BDRCK_MFGR_NUM, 169 WIDGET_BDRCK_PART_NUM, 170 "bedrock", 171 {NULL, "1.0", "1.1", NULL}, 172 }, 173 { 174 WIDGET_TPU_MFGR_NUM, 175 WIDGET_TPU_PART_NUM, 176 "tpu", 177 {"0", NULL}, 178 }, 179 { 180 WIDGET_XXBOW_MFGR_NUM, 181 WIDGET_XXBOW_PART_NUM, 182 "xxbow", 183 {NULL, "1.0", "2.0", NULL}, 184 }, 185 { 186 WIDGET_XBRDG_MFGR_NUM, 187 WIDGET_XBRDG_PART_NUM, 188 "xbridge", 189 {NULL, "A", "B", NULL}, 190 }, 191 { 192 WIDGET_NULL_MFGR_NUM, 193 WIDGET_NULL_PART_NUM, 194 NULL, 195 {NULL}, 196 } 197 }; 198 199 /* 200 * according to the crosstalk spec, only 32-bits access to the widget 201 * configuration registers is allowed. some widgets may allow 64-bits 202 * access but software should not depend on it. registers beyond the 203 * widget target flush register are widget dependent thus will not be 204 * defined here 205 */ 206 #ifndef __ASSEMBLY__ 207 typedef u32 widgetreg_t; 208 209 /* widget configuration registers */ 210 typedef volatile struct widget_cfg { 211 widgetreg_t w_pad_0; /* 0x00 */ 212 widgetreg_t w_id; /* 0x04 */ 213 widgetreg_t w_pad_1; /* 0x08 */ 214 widgetreg_t w_status; /* 0x0c */ 215 widgetreg_t w_pad_2; /* 0x10 */ 216 widgetreg_t w_err_upper_addr; /* 0x14 */ 217 widgetreg_t w_pad_3; /* 0x18 */ 218 widgetreg_t w_err_lower_addr; /* 0x1c */ 219 widgetreg_t w_pad_4; /* 0x20 */ 220 widgetreg_t w_control; /* 0x24 */ 221 widgetreg_t w_pad_5; /* 0x28 */ 222 widgetreg_t w_req_timeout; /* 0x2c */ 223 widgetreg_t w_pad_6; /* 0x30 */ 224 widgetreg_t w_intdest_upper_addr; /* 0x34 */ 225 widgetreg_t w_pad_7; /* 0x38 */ 226 widgetreg_t w_intdest_lower_addr; /* 0x3c */ 227 widgetreg_t w_pad_8; /* 0x40 */ 228 widgetreg_t w_err_cmd_word; /* 0x44 */ 229 widgetreg_t w_pad_9; /* 0x48 */ 230 widgetreg_t w_llp_cfg; /* 0x4c */ 231 widgetreg_t w_pad_10; /* 0x50 */ 232 widgetreg_t w_tflush; /* 0x54 */ 233 } widget_cfg_t; 234 235 typedef struct { 236 unsigned didn:4; 237 unsigned sidn:4; 238 unsigned pactyp:4; 239 unsigned tnum:5; 240 unsigned ct:1; 241 unsigned ds:2; 242 unsigned gbr:1; 243 unsigned vbpm:1; 244 unsigned error:1; 245 unsigned bo:1; 246 unsigned other:8; 247 } w_err_cmd_word_f; 248 249 typedef union { 250 widgetreg_t r; 251 w_err_cmd_word_f f; 252 } w_err_cmd_word_u; 253 254 typedef struct xwidget_info_s *xwidget_info_t; 255 256 /* 257 * Crosstalk Widget Hardware Identification, as defined in the Crosstalk spec. 258 */ 259 typedef struct xwidget_hwid_s { 260 xwidget_part_num_t part_num; 261 xwidget_rev_num_t rev_num; 262 xwidget_mfg_num_t mfg_num; 263 } *xwidget_hwid_t; 264 265 266 /* 267 * Returns 1 if a driver that handles devices described by hwid1 is able 268 * to manage a device with hardwareid hwid2. NOTE: We don't check rev 269 * numbers at all. 270 */ 271 #define XWIDGET_HARDWARE_ID_MATCH(hwid1, hwid2) \ 272 (((hwid1)->part_num == (hwid2)->part_num) && \ 273 (((hwid1)->mfg_num == XWIDGET_MFG_NUM_NONE) || \ 274 ((hwid2)->mfg_num == XWIDGET_MFG_NUM_NONE) || \ 275 ((hwid1)->mfg_num == (hwid2)->mfg_num))) 276 277 #endif /* !__ASSEMBLY__ */ 278 279 #endif /* _ASM_XTALK_XWIDGET_H */ 280